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<h1 id="sec_name">
<span data-if="hdevelop" style="display:inline;">draw_nurbs</span><span data-if="c" style="display:none;">T_draw_nurbs</span><span data-if="cpp" style="display:none;">DrawNurbs</span><span data-if="dotnet" style="display:none;">DrawNurbs</span><span data-if="python" style="display:none;">draw_nurbs</span> (算子名称)</h1>
<h2>名称</h2>
<p><code><span data-if="hdevelop" style="display:inline;">draw_nurbs</span><span data-if="c" style="display:none;">T_draw_nurbs</span><span data-if="cpp" style="display:none;">DrawNurbs</span><span data-if="dotnet" style="display:none;">DrawNurbs</span><span data-if="python" style="display:none;">draw_nurbs</span></code> — Interactive drawing of a NURBS curve.</p>
<h2>警告</h2>
<p><b>This operator does not work in an HDevelop graphics window opened with
<code>dev_open_window</code>.</b></p>
<h2 id="sec_synopsis">参数签名</h2>
<div data-if="hdevelop" style="display:inline;">
<p>
<code><b>draw_nurbs</b>( : <a href="#ContOut"><i>ContOut</i></a> : <a href="#WindowHandle"><i>WindowHandle</i></a>, <a href="#Rotate"><i>Rotate</i></a>, <a href="#Move"><i>Move</i></a>, <a href="#Scale"><i>Scale</i></a>, <a href="#KeepRatio"><i>KeepRatio</i></a>, <a href="#Degree"><i>Degree</i></a> : <a href="#Rows"><i>Rows</i></a>, <a href="#Cols"><i>Cols</i></a>, <a href="#Weights"><i>Weights</i></a>)</code></p>
</div>
<div data-if="c" style="display:none;">
<p>
<code>Herror <b>T_draw_nurbs</b>(Hobject* <a href="#ContOut"><i>ContOut</i></a>, const Htuple <a href="#WindowHandle"><i>WindowHandle</i></a>, const Htuple <a href="#Rotate"><i>Rotate</i></a>, const Htuple <a href="#Move"><i>Move</i></a>, const Htuple <a href="#Scale"><i>Scale</i></a>, const Htuple <a href="#KeepRatio"><i>KeepRatio</i></a>, const Htuple <a href="#Degree"><i>Degree</i></a>, Htuple* <a href="#Rows"><i>Rows</i></a>, Htuple* <a href="#Cols"><i>Cols</i></a>, Htuple* <a href="#Weights"><i>Weights</i></a>)</code></p>
</div>
<div data-if="cpp" style="display:none;">
<p>
<code>void <b>DrawNurbs</b>(HObject* <a href="#ContOut"><i>ContOut</i></a>, const HTuple&amp; <a href="#WindowHandle"><i>WindowHandle</i></a>, const HTuple&amp; <a href="#Rotate"><i>Rotate</i></a>, const HTuple&amp; <a href="#Move"><i>Move</i></a>, const HTuple&amp; <a href="#Scale"><i>Scale</i></a>, const HTuple&amp; <a href="#KeepRatio"><i>KeepRatio</i></a>, const HTuple&amp; <a href="#Degree"><i>Degree</i></a>, HTuple* <a href="#Rows"><i>Rows</i></a>, HTuple* <a href="#Cols"><i>Cols</i></a>, HTuple* <a href="#Weights"><i>Weights</i></a>)</code></p>
<p>
<code>void <a href="HXLDCont.html">HXLDCont</a>::<b>DrawNurbs</b>(const HWindow&amp; <a href="#WindowHandle"><i>WindowHandle</i></a>, const HString&amp; <a href="#Rotate"><i>Rotate</i></a>, const HString&amp; <a href="#Move"><i>Move</i></a>, const HString&amp; <a href="#Scale"><i>Scale</i></a>, const HString&amp; <a href="#KeepRatio"><i>KeepRatio</i></a>, Hlong <a href="#Degree"><i>Degree</i></a>, HTuple* <a href="#Rows"><i>Rows</i></a>, HTuple* <a href="#Cols"><i>Cols</i></a>, HTuple* <a href="#Weights"><i>Weights</i></a>)</code></p>
<p>
<code>void <a href="HXLDCont.html">HXLDCont</a>::<b>DrawNurbs</b>(const HWindow&amp; <a href="#WindowHandle"><i>WindowHandle</i></a>, const char* <a href="#Rotate"><i>Rotate</i></a>, const char* <a href="#Move"><i>Move</i></a>, const char* <a href="#Scale"><i>Scale</i></a>, const char* <a href="#KeepRatio"><i>KeepRatio</i></a>, Hlong <a href="#Degree"><i>Degree</i></a>, HTuple* <a href="#Rows"><i>Rows</i></a>, HTuple* <a href="#Cols"><i>Cols</i></a>, HTuple* <a href="#Weights"><i>Weights</i></a>)</code></p>
<p>
<code>void <a href="HXLDCont.html">HXLDCont</a>::<b>DrawNurbs</b>(const HWindow&amp; <a href="#WindowHandle"><i>WindowHandle</i></a>, const wchar_t* <a href="#Rotate"><i>Rotate</i></a>, const wchar_t* <a href="#Move"><i>Move</i></a>, const wchar_t* <a href="#Scale"><i>Scale</i></a>, const wchar_t* <a href="#KeepRatio"><i>KeepRatio</i></a>, Hlong <a href="#Degree"><i>Degree</i></a>, HTuple* <a href="#Rows"><i>Rows</i></a>, HTuple* <a href="#Cols"><i>Cols</i></a>, HTuple* <a href="#Weights"><i>Weights</i></a>)  <span class="signnote">
            (
            Windows only)
          </span></code></p>
<p>
<code><a href="HXLDCont.html">HXLDCont</a> <a href="HWindow.html">HWindow</a>::<b>DrawNurbs</b>(const HString&amp; <a href="#Rotate"><i>Rotate</i></a>, const HString&amp; <a href="#Move"><i>Move</i></a>, const HString&amp; <a href="#Scale"><i>Scale</i></a>, const HString&amp; <a href="#KeepRatio"><i>KeepRatio</i></a>, Hlong <a href="#Degree"><i>Degree</i></a>, HTuple* <a href="#Rows"><i>Rows</i></a>, HTuple* <a href="#Cols"><i>Cols</i></a>, HTuple* <a href="#Weights"><i>Weights</i></a>) const</code></p>
<p>
<code><a href="HXLDCont.html">HXLDCont</a> <a href="HWindow.html">HWindow</a>::<b>DrawNurbs</b>(const char* <a href="#Rotate"><i>Rotate</i></a>, const char* <a href="#Move"><i>Move</i></a>, const char* <a href="#Scale"><i>Scale</i></a>, const char* <a href="#KeepRatio"><i>KeepRatio</i></a>, Hlong <a href="#Degree"><i>Degree</i></a>, HTuple* <a href="#Rows"><i>Rows</i></a>, HTuple* <a href="#Cols"><i>Cols</i></a>, HTuple* <a href="#Weights"><i>Weights</i></a>) const</code></p>
<p>
<code><a href="HXLDCont.html">HXLDCont</a> <a href="HWindow.html">HWindow</a>::<b>DrawNurbs</b>(const wchar_t* <a href="#Rotate"><i>Rotate</i></a>, const wchar_t* <a href="#Move"><i>Move</i></a>, const wchar_t* <a href="#Scale"><i>Scale</i></a>, const wchar_t* <a href="#KeepRatio"><i>KeepRatio</i></a>, Hlong <a href="#Degree"><i>Degree</i></a>, HTuple* <a href="#Rows"><i>Rows</i></a>, HTuple* <a href="#Cols"><i>Cols</i></a>, HTuple* <a href="#Weights"><i>Weights</i></a>) const  <span class="signnote">
            (
            Windows only)
          </span></code></p>
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<p>
<code>static void <a href="HOperatorSet.html">HOperatorSet</a>.<b>DrawNurbs</b>(out <a href="HObject.html">HObject</a> <a href="#ContOut"><i>contOut</i></a>, <a href="HTuple.html">HTuple</a> <a href="#WindowHandle"><i>windowHandle</i></a>, <a href="HTuple.html">HTuple</a> <a href="#Rotate"><i>rotate</i></a>, <a href="HTuple.html">HTuple</a> <a href="#Move"><i>move</i></a>, <a href="HTuple.html">HTuple</a> <a href="#Scale"><i>scale</i></a>, <a href="HTuple.html">HTuple</a> <a href="#KeepRatio"><i>keepRatio</i></a>, <a href="HTuple.html">HTuple</a> <a href="#Degree"><i>degree</i></a>, out <a href="HTuple.html">HTuple</a> <a href="#Rows"><i>rows</i></a>, out <a href="HTuple.html">HTuple</a> <a href="#Cols"><i>cols</i></a>, out <a href="HTuple.html">HTuple</a> <a href="#Weights"><i>weights</i></a>)</code></p>
<p>
<code>void <a href="HXLDCont.html">HXLDCont</a>.<b>DrawNurbs</b>(<a href="HWindow.html">HWindow</a> <a href="#WindowHandle"><i>windowHandle</i></a>, string <a href="#Rotate"><i>rotate</i></a>, string <a href="#Move"><i>move</i></a>, string <a href="#Scale"><i>scale</i></a>, string <a href="#KeepRatio"><i>keepRatio</i></a>, int <a href="#Degree"><i>degree</i></a>, out <a href="HTuple.html">HTuple</a> <a href="#Rows"><i>rows</i></a>, out <a href="HTuple.html">HTuple</a> <a href="#Cols"><i>cols</i></a>, out <a href="HTuple.html">HTuple</a> <a href="#Weights"><i>weights</i></a>)</code></p>
<p>
<code><a href="HXLDCont.html">HXLDCont</a> <a href="HWindow.html">HWindow</a>.<b>DrawNurbs</b>(string <a href="#Rotate"><i>rotate</i></a>, string <a href="#Move"><i>move</i></a>, string <a href="#Scale"><i>scale</i></a>, string <a href="#KeepRatio"><i>keepRatio</i></a>, int <a href="#Degree"><i>degree</i></a>, out <a href="HTuple.html">HTuple</a> <a href="#Rows"><i>rows</i></a>, out <a href="HTuple.html">HTuple</a> <a href="#Cols"><i>cols</i></a>, out <a href="HTuple.html">HTuple</a> <a href="#Weights"><i>weights</i></a>)</code></p>
</div>
<div data-if="python" style="display:none;">
<p>
<code>def <b>draw_nurbs</b>(<a href="#WindowHandle"><i>window_handle</i></a>: HHandle, <a href="#Rotate"><i>rotate</i></a>: str, <a href="#Move"><i>move</i></a>: str, <a href="#Scale"><i>scale</i></a>: str, <a href="#KeepRatio"><i>keep_ratio</i></a>: str, <a href="#Degree"><i>degree</i></a>: int) -&gt; Tuple[HObject, Sequence[float], Sequence[float], Sequence[float]]</code></p>
</div>
<h2 id="sec_description">描述</h2>
<p><code><span data-if="hdevelop" style="display:inline">draw_nurbs</span><span data-if="c" style="display:none">draw_nurbs</span><span data-if="cpp" style="display:none">DrawNurbs</span><span data-if="com" style="display:none">DrawNurbs</span><span data-if="dotnet" style="display:none">DrawNurbs</span><span data-if="python" style="display:none">draw_nurbs</span></code> returns the contour <a href="#ContOut"><i><code><span data-if="hdevelop" style="display:inline">ContOut</span><span data-if="c" style="display:none">ContOut</span><span data-if="cpp" style="display:none">ContOut</span><span data-if="com" style="display:none">ContOut</span><span data-if="dotnet" style="display:none">contOut</span><span data-if="python" style="display:none">cont_out</span></code></i></a> and control
information
(<a href="#Rows"><i><code><span data-if="hdevelop" style="display:inline">Rows</span><span data-if="c" style="display:none">Rows</span><span data-if="cpp" style="display:none">Rows</span><span data-if="com" style="display:none">Rows</span><span data-if="dotnet" style="display:none">rows</span><span data-if="python" style="display:none">rows</span></code></i></a>, <a href="#Cols"><i><code><span data-if="hdevelop" style="display:inline">Cols</span><span data-if="c" style="display:none">Cols</span><span data-if="cpp" style="display:none">Cols</span><span data-if="com" style="display:none">Cols</span><span data-if="dotnet" style="display:none">cols</span><span data-if="python" style="display:none">cols</span></code></i></a>, and <a href="#Weights"><i><code><span data-if="hdevelop" style="display:inline">Weights</span><span data-if="c" style="display:none">Weights</span><span data-if="cpp" style="display:none">Weights</span><span data-if="com" style="display:none">Weights</span><span data-if="dotnet" style="display:none">weights</span><span data-if="python" style="display:none">weights</span></code></i></a>) of a NURBS curve of
degree <a href="#Degree"><i><code><span data-if="hdevelop" style="display:inline">Degree</span><span data-if="c" style="display:none">Degree</span><span data-if="cpp" style="display:none">Degree</span><span data-if="com" style="display:none">Degree</span><span data-if="dotnet" style="display:none">degree</span><span data-if="python" style="display:none">degree</span></code></i></a>, which
has been created interactively by the user in the window
<a href="#WindowHandle"><i><code><span data-if="hdevelop" style="display:inline">WindowHandle</span><span data-if="c" style="display:none">WindowHandle</span><span data-if="cpp" style="display:none">WindowHandle</span><span data-if="com" style="display:none">WindowHandle</span><span data-if="dotnet" style="display:none">windowHandle</span><span data-if="python" style="display:none">window_handle</span></code></i></a>. For additional
information concerning NURBS curves, see the documentation of
<a href="gen_contour_nurbs_xld.html"><code><span data-if="hdevelop" style="display:inline">gen_contour_nurbs_xld</span><span data-if="c" style="display:none">gen_contour_nurbs_xld</span><span data-if="cpp" style="display:none">GenContourNurbsXld</span><span data-if="com" style="display:none">GenContourNurbsXld</span><span data-if="dotnet" style="display:none">GenContourNurbsXld</span><span data-if="python" style="display:none">gen_contour_nurbs_xld</span></code></a>. To use the control information
<a href="#Rows"><i><code><span data-if="hdevelop" style="display:inline">Rows</span><span data-if="c" style="display:none">Rows</span><span data-if="cpp" style="display:none">Rows</span><span data-if="com" style="display:none">Rows</span><span data-if="dotnet" style="display:none">rows</span><span data-if="python" style="display:none">rows</span></code></i></a>, <a href="#Cols"><i><code><span data-if="hdevelop" style="display:inline">Cols</span><span data-if="c" style="display:none">Cols</span><span data-if="cpp" style="display:none">Cols</span><span data-if="com" style="display:none">Cols</span><span data-if="dotnet" style="display:none">cols</span><span data-if="python" style="display:none">cols</span></code></i></a>, and <a href="#Weights"><i><code><span data-if="hdevelop" style="display:inline">Weights</span><span data-if="c" style="display:none">Weights</span><span data-if="cpp" style="display:none">Weights</span><span data-if="com" style="display:none">Weights</span><span data-if="dotnet" style="display:none">weights</span><span data-if="python" style="display:none">weights</span></code></i></a> in a subsequent call to
该算子 <a href="gen_contour_nurbs_xld.html"><code><span data-if="hdevelop" style="display:inline">gen_contour_nurbs_xld</span><span data-if="c" style="display:none">gen_contour_nurbs_xld</span><span data-if="cpp" style="display:none">GenContourNurbsXld</span><span data-if="com" style="display:none">GenContourNurbsXld</span><span data-if="dotnet" style="display:none">GenContourNurbsXld</span><span data-if="python" style="display:none">gen_contour_nurbs_xld</span></code></a>, the knot vector
<code><span data-if="hdevelop" style="display:inline">Knots</span><span data-if="c" style="display:none">Knots</span><span data-if="cpp" style="display:none">Knots</span><span data-if="com" style="display:none">Knots</span><span data-if="dotnet" style="display:none">knots</span><span data-if="python" style="display:none">knots</span></code> should be set to <i><span data-if="hdevelop" style="display:inline">'auto'</span><span data-if="c" style="display:none">"auto"</span><span data-if="cpp" style="display:none">"auto"</span><span data-if="com" style="display:none">"auto"</span><span data-if="dotnet" style="display:none">"auto"</span><span data-if="python" style="display:none">"auto"</span></i>.
</p>
<p>The NURBS curve is created and manipulated by the means of its control
polygon. By contrast, using 该算子 <a href="draw_nurbs_interp.html"><code><span data-if="hdevelop" style="display:inline">draw_nurbs_interp</span><span data-if="c" style="display:none">draw_nurbs_interp</span><span data-if="cpp" style="display:none">DrawNurbsInterp</span><span data-if="com" style="display:none">DrawNurbsInterp</span><span data-if="dotnet" style="display:none">DrawNurbsInterp</span><span data-if="python" style="display:none">draw_nurbs_interp</span></code></a>, it is
possible to create a NURBS curve that interpolates points specified by the
user.
Directly after calling <code><span data-if="hdevelop" style="display:inline">draw_nurbs</span><span data-if="c" style="display:none">draw_nurbs</span><span data-if="cpp" style="display:none">DrawNurbs</span><span data-if="com" style="display:none">DrawNurbs</span><span data-if="dotnet" style="display:none">DrawNurbs</span><span data-if="python" style="display:none">draw_nurbs</span></code>, you can add control points
by clicking with the left mouse button in the window at the desired
positions.
</p>
<p>When there are three control points or more, the first and the last point
will be marked with an additional square. By clicking on them you can close
the curve or open it again. You delete the point appended last by pressing
the Ctrl key.
</p>
<p>As soon as the number of control points exceeds <a href="#Degree"><i><code><span data-if="hdevelop" style="display:inline">Degree</span><span data-if="c" style="display:none">Degree</span><span data-if="cpp" style="display:none">Degree</span><span data-if="com" style="display:none">Degree</span><span data-if="dotnet" style="display:none">degree</span><span data-if="python" style="display:none">degree</span></code></i></a>, the NURBS
curve given by the specified control polygon and weight vector is
displayed in addition to the control polygon.
</p>
<p>The control point which was handled last is surrounded by a circle
representing its weight. By simply dragging the circle you can increase or
decrease the weight of this control point.
</p>
<p>Existing control points can be moved by dragging them with the mouse. Further
new points on the control polygon (to refine the control polygon) can be
inserted by a left click on the desired position on the control polygon.
</p>
<p>By pressing the Shift key, you can switch into the transformation mode.
In this mode you can rotate, move, and scale the contour as a whole,
but only if you set the parameters <a href="#Rotate"><i><code><span data-if="hdevelop" style="display:inline">Rotate</span><span data-if="c" style="display:none">Rotate</span><span data-if="cpp" style="display:none">Rotate</span><span data-if="com" style="display:none">Rotate</span><span data-if="dotnet" style="display:none">rotate</span><span data-if="python" style="display:none">rotate</span></code></i></a>, <a href="#Move"><i><code><span data-if="hdevelop" style="display:inline">Move</span><span data-if="c" style="display:none">Move</span><span data-if="cpp" style="display:none">Move</span><span data-if="com" style="display:none">Move</span><span data-if="dotnet" style="display:none">move</span><span data-if="python" style="display:none">move</span></code></i></a>, and
<a href="#Scale"><i><code><span data-if="hdevelop" style="display:inline">Scale</span><span data-if="c" style="display:none">Scale</span><span data-if="cpp" style="display:none">Scale</span><span data-if="com" style="display:none">Scale</span><span data-if="dotnet" style="display:none">scale</span><span data-if="python" style="display:none">scale</span></code></i></a>, respectively, to <i><span data-if="hdevelop" style="display:inline">'true'</span><span data-if="c" style="display:none">"true"</span><span data-if="cpp" style="display:none">"true"</span><span data-if="com" style="display:none">"true"</span><span data-if="dotnet" style="display:none">"true"</span><span data-if="python" style="display:none">"true"</span></i>. Instead of the pick points
and the control polygon,
3 symbols are displayed with the contour: a cross in the middle and an arrow
to the right if <a href="#Rotate"><i><code><span data-if="hdevelop" style="display:inline">Rotate</span><span data-if="c" style="display:none">Rotate</span><span data-if="cpp" style="display:none">Rotate</span><span data-if="com" style="display:none">Rotate</span><span data-if="dotnet" style="display:none">rotate</span><span data-if="python" style="display:none">rotate</span></code></i></a> is set to <i><span data-if="hdevelop" style="display:inline">'true'</span><span data-if="c" style="display:none">"true"</span><span data-if="cpp" style="display:none">"true"</span><span data-if="com" style="display:none">"true"</span><span data-if="dotnet" style="display:none">"true"</span><span data-if="python" style="display:none">"true"</span></i>, and a double-headed
arrow to the upper right if <a href="#Scale"><i><code><span data-if="hdevelop" style="display:inline">Scale</span><span data-if="c" style="display:none">Scale</span><span data-if="cpp" style="display:none">Scale</span><span data-if="com" style="display:none">Scale</span><span data-if="dotnet" style="display:none">scale</span><span data-if="python" style="display:none">scale</span></code></i></a> is set to <i><span data-if="hdevelop" style="display:inline">'true'</span><span data-if="c" style="display:none">"true"</span><span data-if="cpp" style="display:none">"true"</span><span data-if="com" style="display:none">"true"</span><span data-if="dotnet" style="display:none">"true"</span><span data-if="python" style="display:none">"true"</span></i>.
</p>
<p>You can
</p>
<ul>
<li>
<p> move the curve by clicking the left mouse button on the cross in
the center and then dragging it to the new position,
</p>
</li>
<li>
<p> rotate it by clicking with the left mouse button on the arrow and
then dragging it, till the curve has the right direction, and
</p>
</li>
<li>
<p> scale it by dragging the double arrow. To keep the ratio the
parameter <a href="#KeepRatio"><i><code><span data-if="hdevelop" style="display:inline">KeepRatio</span><span data-if="c" style="display:none">KeepRatio</span><span data-if="cpp" style="display:none">KeepRatio</span><span data-if="com" style="display:none">KeepRatio</span><span data-if="dotnet" style="display:none">keepRatio</span><span data-if="python" style="display:none">keep_ratio</span></code></i></a> has to be set to <i><span data-if="hdevelop" style="display:inline">'true'</span><span data-if="c" style="display:none">"true"</span><span data-if="cpp" style="display:none">"true"</span><span data-if="com" style="display:none">"true"</span><span data-if="dotnet" style="display:none">"true"</span><span data-if="python" style="display:none">"true"</span></i>.
</p>
</li>
</ul>
<p>By pressing the Shift key again you can switch back to the edit mode.
Pressing the right mouse button terminates the procedure.
</p>
<p>The appearance of the curve while drawing is determined by the line width,
size, and color set via 该算子s <a href="set_color.html"><code><span data-if="hdevelop" style="display:inline">set_color</span><span data-if="c" style="display:none">set_color</span><span data-if="cpp" style="display:none">SetColor</span><span data-if="com" style="display:none">SetColor</span><span data-if="dotnet" style="display:none">SetColor</span><span data-if="python" style="display:none">set_color</span></code></a>, <a href="set_colored.html"><code><span data-if="hdevelop" style="display:inline">set_colored</span><span data-if="c" style="display:none">set_colored</span><span data-if="cpp" style="display:none">SetColored</span><span data-if="com" style="display:none">SetColored</span><span data-if="dotnet" style="display:none">SetColored</span><span data-if="python" style="display:none">set_colored</span></code></a>,
<a href="set_line_width.html"><code><span data-if="hdevelop" style="display:inline">set_line_width</span><span data-if="c" style="display:none">set_line_width</span><span data-if="cpp" style="display:none">SetLineWidth</span><span data-if="com" style="display:none">SetLineWidth</span><span data-if="dotnet" style="display:none">SetLineWidth</span><span data-if="python" style="display:none">set_line_width</span></code></a>, and <a href="set_line_style.html"><code><span data-if="hdevelop" style="display:inline">set_line_style</span><span data-if="c" style="display:none">set_line_style</span><span data-if="cpp" style="display:none">SetLineStyle</span><span data-if="com" style="display:none">SetLineStyle</span><span data-if="dotnet" style="display:none">SetLineStyle</span><span data-if="python" style="display:none">set_line_style</span></code></a>. The control polygon and
all handles are displayed in the second color set by <a href="set_color.html"><code><span data-if="hdevelop" style="display:inline">set_color</span><span data-if="c" style="display:none">set_color</span><span data-if="cpp" style="display:none">SetColor</span><span data-if="com" style="display:none">SetColor</span><span data-if="dotnet" style="display:none">SetColor</span><span data-if="python" style="display:none">set_color</span></code></a> or
<a href="set_colored.html"><code><span data-if="hdevelop" style="display:inline">set_colored</span><span data-if="c" style="display:none">set_colored</span><span data-if="cpp" style="display:none">SetColored</span><span data-if="com" style="display:none">SetColored</span><span data-if="dotnet" style="display:none">SetColored</span><span data-if="python" style="display:none">set_colored</span></code></a>. Their line width is fixed to 1 and their line style is
fixed to a drawn-through line.</p>
<h2 id="sec_execution">运行信息</h2>
<ul>
  <li>多线程类型:可重入(与非独占操作符并行运行)。</li>
<li>多线程作用域:全局(可以从任何线程调用)。</li>
  <li>未经并行化处理。</li>
</ul>
<h2 id="sec_parameters">参数表</h2>
  <div class="par">
<div class="parhead">
<span id="ContOut" class="parname"><b><code><span data-if="hdevelop" style="display:inline">ContOut</span><span data-if="c" style="display:none">ContOut</span><span data-if="cpp" style="display:none">ContOut</span><span data-if="com" style="display:none">ContOut</span><span data-if="dotnet" style="display:none">contOut</span><span data-if="python" style="display:none">cont_out</span></code></b> (output_object)  </span><span>xld_cont <code>→</code> <span data-if="hdevelop" style="display:inline">object</span><span data-if="dotnet" style="display:none"><a href="HXLDCont.html">HXLDCont</a></span><span data-if="python" style="display:none">HObject</span><span data-if="cpp" style="display:none"><a href="HXLDCont.html">HXLDCont</a></span><span data-if="c" style="display:none">Hobject *</span></span>
</div>
<p class="pardesc">Contour approximating the NURBS curve.</p>
</div>
  <div class="par">
<div class="parhead">
<span id="WindowHandle" class="parname"><b><code><span data-if="hdevelop" style="display:inline">WindowHandle</span><span data-if="c" style="display:none">WindowHandle</span><span data-if="cpp" style="display:none">WindowHandle</span><span data-if="com" style="display:none">WindowHandle</span><span data-if="dotnet" style="display:none">windowHandle</span><span data-if="python" style="display:none">window_handle</span></code></b> (input_control)  </span><span>window <code>→</code> <span data-if="dotnet" style="display:none"><a href="HWindow.html">HWindow</a>, </span><span data-if="dotnet" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="python" style="display:none">HHandle</span><span data-if="cpp" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="c" style="display:none">Htuple</span><span data-if="hdevelop" style="display:inline"> (handle)</span><span data-if="dotnet" style="display:none"> (<i>IntPtr</i>)</span><span data-if="cpp" style="display:none"> (<i>HHandle</i>)</span><span data-if="c" style="display:none"> (<i>handle</i>)</span></span>
</div>
<p class="pardesc">Window handle.</p>
</div>
  <div class="par">
<div class="parhead">
<span id="Rotate" class="parname"><b><code><span data-if="hdevelop" style="display:inline">Rotate</span><span data-if="c" style="display:none">Rotate</span><span data-if="cpp" style="display:none">Rotate</span><span data-if="com" style="display:none">Rotate</span><span data-if="dotnet" style="display:none">rotate</span><span data-if="python" style="display:none">rotate</span></code></b> (input_control)  </span><span>string <code>→</code> <span data-if="dotnet" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="python" style="display:none">str</span><span data-if="cpp" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="c" style="display:none">Htuple</span><span data-if="hdevelop" style="display:inline"> (string)</span><span data-if="dotnet" style="display:none"> (<i>string</i>)</span><span data-if="cpp" style="display:none"> (<i>HString</i>)</span><span data-if="c" style="display:none"> (<i>char*</i>)</span></span>
</div>
<p class="pardesc">Enable rotation?</p>
<p class="pardesc"><span class="parcat">Default:
      </span>
    <span data-if="hdevelop" style="display:inline">'true'</span>
    <span data-if="c" style="display:none">"true"</span>
    <span data-if="cpp" style="display:none">"true"</span>
    <span data-if="com" style="display:none">"true"</span>
    <span data-if="dotnet" style="display:none">"true"</span>
    <span data-if="python" style="display:none">"true"</span>
</p>
<p class="pardesc"><span class="parcat">List of values:
      </span><span data-if="hdevelop" style="display:inline">'false'</span><span data-if="c" style="display:none">"false"</span><span data-if="cpp" style="display:none">"false"</span><span data-if="com" style="display:none">"false"</span><span data-if="dotnet" style="display:none">"false"</span><span data-if="python" style="display:none">"false"</span>, <span data-if="hdevelop" style="display:inline">'true'</span><span data-if="c" style="display:none">"true"</span><span data-if="cpp" style="display:none">"true"</span><span data-if="com" style="display:none">"true"</span><span data-if="dotnet" style="display:none">"true"</span><span data-if="python" style="display:none">"true"</span></p>
</div>
  <div class="par">
<div class="parhead">
<span id="Move" class="parname"><b><code><span data-if="hdevelop" style="display:inline">Move</span><span data-if="c" style="display:none">Move</span><span data-if="cpp" style="display:none">Move</span><span data-if="com" style="display:none">Move</span><span data-if="dotnet" style="display:none">move</span><span data-if="python" style="display:none">move</span></code></b> (input_control)  </span><span>string <code>→</code> <span data-if="dotnet" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="python" style="display:none">str</span><span data-if="cpp" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="c" style="display:none">Htuple</span><span data-if="hdevelop" style="display:inline"> (string)</span><span data-if="dotnet" style="display:none"> (<i>string</i>)</span><span data-if="cpp" style="display:none"> (<i>HString</i>)</span><span data-if="c" style="display:none"> (<i>char*</i>)</span></span>
</div>
<p class="pardesc">Enable moving?</p>
<p class="pardesc"><span class="parcat">Default:
      </span>
    <span data-if="hdevelop" style="display:inline">'true'</span>
    <span data-if="c" style="display:none">"true"</span>
    <span data-if="cpp" style="display:none">"true"</span>
    <span data-if="com" style="display:none">"true"</span>
    <span data-if="dotnet" style="display:none">"true"</span>
    <span data-if="python" style="display:none">"true"</span>
</p>
<p class="pardesc"><span class="parcat">List of values:
      </span><span data-if="hdevelop" style="display:inline">'false'</span><span data-if="c" style="display:none">"false"</span><span data-if="cpp" style="display:none">"false"</span><span data-if="com" style="display:none">"false"</span><span data-if="dotnet" style="display:none">"false"</span><span data-if="python" style="display:none">"false"</span>, <span data-if="hdevelop" style="display:inline">'true'</span><span data-if="c" style="display:none">"true"</span><span data-if="cpp" style="display:none">"true"</span><span data-if="com" style="display:none">"true"</span><span data-if="dotnet" style="display:none">"true"</span><span data-if="python" style="display:none">"true"</span></p>
</div>
  <div class="par">
<div class="parhead">
<span id="Scale" class="parname"><b><code><span data-if="hdevelop" style="display:inline">Scale</span><span data-if="c" style="display:none">Scale</span><span data-if="cpp" style="display:none">Scale</span><span data-if="com" style="display:none">Scale</span><span data-if="dotnet" style="display:none">scale</span><span data-if="python" style="display:none">scale</span></code></b> (input_control)  </span><span>string <code>→</code> <span data-if="dotnet" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="python" style="display:none">str</span><span data-if="cpp" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="c" style="display:none">Htuple</span><span data-if="hdevelop" style="display:inline"> (string)</span><span data-if="dotnet" style="display:none"> (<i>string</i>)</span><span data-if="cpp" style="display:none"> (<i>HString</i>)</span><span data-if="c" style="display:none"> (<i>char*</i>)</span></span>
</div>
<p class="pardesc">Enable scaling?</p>
<p class="pardesc"><span class="parcat">Default:
      </span>
    <span data-if="hdevelop" style="display:inline">'true'</span>
    <span data-if="c" style="display:none">"true"</span>
    <span data-if="cpp" style="display:none">"true"</span>
    <span data-if="com" style="display:none">"true"</span>
    <span data-if="dotnet" style="display:none">"true"</span>
    <span data-if="python" style="display:none">"true"</span>
</p>
<p class="pardesc"><span class="parcat">List of values:
      </span><span data-if="hdevelop" style="display:inline">'false'</span><span data-if="c" style="display:none">"false"</span><span data-if="cpp" style="display:none">"false"</span><span data-if="com" style="display:none">"false"</span><span data-if="dotnet" style="display:none">"false"</span><span data-if="python" style="display:none">"false"</span>, <span data-if="hdevelop" style="display:inline">'true'</span><span data-if="c" style="display:none">"true"</span><span data-if="cpp" style="display:none">"true"</span><span data-if="com" style="display:none">"true"</span><span data-if="dotnet" style="display:none">"true"</span><span data-if="python" style="display:none">"true"</span></p>
</div>
  <div class="par">
<div class="parhead">
<span id="KeepRatio" class="parname"><b><code><span data-if="hdevelop" style="display:inline">KeepRatio</span><span data-if="c" style="display:none">KeepRatio</span><span data-if="cpp" style="display:none">KeepRatio</span><span data-if="com" style="display:none">KeepRatio</span><span data-if="dotnet" style="display:none">keepRatio</span><span data-if="python" style="display:none">keep_ratio</span></code></b> (input_control)  </span><span>string <code>→</code> <span data-if="dotnet" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="python" style="display:none">str</span><span data-if="cpp" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="c" style="display:none">Htuple</span><span data-if="hdevelop" style="display:inline"> (string)</span><span data-if="dotnet" style="display:none"> (<i>string</i>)</span><span data-if="cpp" style="display:none"> (<i>HString</i>)</span><span data-if="c" style="display:none"> (<i>char*</i>)</span></span>
</div>
<p class="pardesc">Keep ratio while scaling?</p>
<p class="pardesc"><span class="parcat">Default:
      </span>
    <span data-if="hdevelop" style="display:inline">'true'</span>
    <span data-if="c" style="display:none">"true"</span>
    <span data-if="cpp" style="display:none">"true"</span>
    <span data-if="com" style="display:none">"true"</span>
    <span data-if="dotnet" style="display:none">"true"</span>
    <span data-if="python" style="display:none">"true"</span>
</p>
<p class="pardesc"><span class="parcat">List of values:
      </span><span data-if="hdevelop" style="display:inline">'false'</span><span data-if="c" style="display:none">"false"</span><span data-if="cpp" style="display:none">"false"</span><span data-if="com" style="display:none">"false"</span><span data-if="dotnet" style="display:none">"false"</span><span data-if="python" style="display:none">"false"</span>, <span data-if="hdevelop" style="display:inline">'true'</span><span data-if="c" style="display:none">"true"</span><span data-if="cpp" style="display:none">"true"</span><span data-if="com" style="display:none">"true"</span><span data-if="dotnet" style="display:none">"true"</span><span data-if="python" style="display:none">"true"</span></p>
</div>
  <div class="par">
<div class="parhead">
<span id="Degree" class="parname"><b><code><span data-if="hdevelop" style="display:inline">Degree</span><span data-if="c" style="display:none">Degree</span><span data-if="cpp" style="display:none">Degree</span><span data-if="com" style="display:none">Degree</span><span data-if="dotnet" style="display:none">degree</span><span data-if="python" style="display:none">degree</span></code></b> (input_control)  </span><span>integer <code>→</code> <span data-if="dotnet" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="python" style="display:none">int</span><span data-if="cpp" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="c" style="display:none">Htuple</span><span data-if="hdevelop" style="display:inline"> (integer)</span><span data-if="dotnet" style="display:none"> (<i>int</i> / </span><span data-if="dotnet" style="display:none">long)</span><span data-if="cpp" style="display:none"> (<i>Hlong</i>)</span><span data-if="c" style="display:none"> (<i>Hlong</i>)</span></span>
</div>
<p class="pardesc">The degree p of the NURBS curve. Reasonable values are
3 to 25.</p>
<p class="pardesc"><span class="parcat">Default:
      </span>3</p>
<p class="pardesc"><span class="parcat">Suggested values:
      </span>2, 3, 4, 5</p>
<p class="pardesc"><span class="parcat">Restriction:
      </span><code>Degree &gt;= 2</code></p>
</div>
  <div class="par">
<div class="parhead">
<span id="Rows" class="parname"><b><code><span data-if="hdevelop" style="display:inline">Rows</span><span data-if="c" style="display:none">Rows</span><span data-if="cpp" style="display:none">Rows</span><span data-if="com" style="display:none">Rows</span><span data-if="dotnet" style="display:none">rows</span><span data-if="python" style="display:none">rows</span></code></b> (output_control)  </span><span>coordinates.y-array <code>→</code> <span data-if="dotnet" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="python" style="display:none">Sequence[float]</span><span data-if="cpp" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="c" style="display:none">Htuple</span><span data-if="hdevelop" style="display:inline"> (real)</span><span data-if="dotnet" style="display:none"> (<i>double</i>)</span><span data-if="cpp" style="display:none"> (<i>double</i>)</span><span data-if="c" style="display:none"> (<i>double</i>)</span></span>
</div>
<p class="pardesc">Row coordinates of the control polygon.</p>
</div>
  <div class="par">
<div class="parhead">
<span id="Cols" class="parname"><b><code><span data-if="hdevelop" style="display:inline">Cols</span><span data-if="c" style="display:none">Cols</span><span data-if="cpp" style="display:none">Cols</span><span data-if="com" style="display:none">Cols</span><span data-if="dotnet" style="display:none">cols</span><span data-if="python" style="display:none">cols</span></code></b> (output_control)  </span><span>coordinates.x-array <code>→</code> <span data-if="dotnet" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="python" style="display:none">Sequence[float]</span><span data-if="cpp" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="c" style="display:none">Htuple</span><span data-if="hdevelop" style="display:inline"> (real)</span><span data-if="dotnet" style="display:none"> (<i>double</i>)</span><span data-if="cpp" style="display:none"> (<i>double</i>)</span><span data-if="c" style="display:none"> (<i>double</i>)</span></span>
</div>
<p class="pardesc">Columns coordinates of the control polygon.</p>
</div>
  <div class="par">
<div class="parhead">
<span id="Weights" class="parname"><b><code><span data-if="hdevelop" style="display:inline">Weights</span><span data-if="c" style="display:none">Weights</span><span data-if="cpp" style="display:none">Weights</span><span data-if="com" style="display:none">Weights</span><span data-if="dotnet" style="display:none">weights</span><span data-if="python" style="display:none">weights</span></code></b> (output_control)  </span><span>real-array <code>→</code> <span data-if="dotnet" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="python" style="display:none">Sequence[float]</span><span data-if="cpp" style="display:none"><a href="HTuple.html">HTuple</a></span><span data-if="c" style="display:none">Htuple</span><span data-if="hdevelop" style="display:inline"> (real)</span><span data-if="dotnet" style="display:none"> (<i>double</i>)</span><span data-if="cpp" style="display:none"> (<i>double</i>)</span><span data-if="c" style="display:none"> (<i>double</i>)</span></span>
</div>
<p class="pardesc">Weight vector.</p>
</div>
<h2 id="sec_result">结果</h2>
<p><code><span data-if="hdevelop" style="display:inline">draw_nurbs</span><span data-if="c" style="display:none">draw_nurbs</span><span data-if="cpp" style="display:none">DrawNurbs</span><span data-if="com" style="display:none">DrawNurbs</span><span data-if="dotnet" style="display:none">DrawNurbs</span><span data-if="python" style="display:none">draw_nurbs</span></code> returns <TT>2</TT> (
      <TT>H_MSG_TRUE</TT>)
    , if the window is valid.
如有必要，将引发异常。</p>
<h2 id="sec_predecessors">可能的前置算子</h2>
<p>
<code><a href="open_window.html"><span data-if="hdevelop" style="display:inline">open_window</span><span data-if="c" style="display:none">open_window</span><span data-if="cpp" style="display:none">OpenWindow</span><span data-if="com" style="display:none">OpenWindow</span><span data-if="dotnet" style="display:none">OpenWindow</span><span data-if="python" style="display:none">open_window</span></a></code>
</p>
<h2 id="sec_successors">可能的后置算子</h2>
<p>
<code><a href="set_colored.html"><span data-if="hdevelop" style="display:inline">set_colored</span><span data-if="c" style="display:none">set_colored</span><span data-if="cpp" style="display:none">SetColored</span><span data-if="com" style="display:none">SetColored</span><span data-if="dotnet" style="display:none">SetColored</span><span data-if="python" style="display:none">set_colored</span></a></code>, 
<code><a href="set_line_width.html"><span data-if="hdevelop" style="display:inline">set_line_width</span><span data-if="c" style="display:none">set_line_width</span><span data-if="cpp" style="display:none">SetLineWidth</span><span data-if="com" style="display:none">SetLineWidth</span><span data-if="dotnet" style="display:none">SetLineWidth</span><span data-if="python" style="display:none">set_line_width</span></a></code>, 
<code><a href="set_draw.html"><span data-if="hdevelop" style="display:inline">set_draw</span><span data-if="c" style="display:none">set_draw</span><span data-if="cpp" style="display:none">SetDraw</span><span data-if="com" style="display:none">SetDraw</span><span data-if="dotnet" style="display:none">SetDraw</span><span data-if="python" style="display:none">set_draw</span></a></code>, 
<code><a href="set_insert.html"><span data-if="hdevelop" style="display:inline">set_insert</span><span data-if="c" style="display:none">set_insert</span><span data-if="cpp" style="display:none">SetInsert</span><span data-if="com" style="display:none">SetInsert</span><span data-if="dotnet" style="display:none">SetInsert</span><span data-if="python" style="display:none">set_insert</span></a></code>
</p>
<h2 id="sec_alternatives">可替代算子</h2>
<p>
<code><a href="draw_xld.html"><span data-if="hdevelop" style="display:inline">draw_xld</span><span data-if="c" style="display:none">draw_xld</span><span data-if="cpp" style="display:none">DrawXld</span><span data-if="com" style="display:none">DrawXld</span><span data-if="dotnet" style="display:none">DrawXld</span><span data-if="python" style="display:none">draw_xld</span></a></code>, 
<code><a href="draw_nurbs_interp.html"><span data-if="hdevelop" style="display:inline">draw_nurbs_interp</span><span data-if="c" style="display:none">draw_nurbs_interp</span><span data-if="cpp" style="display:none">DrawNurbsInterp</span><span data-if="com" style="display:none">DrawNurbsInterp</span><span data-if="dotnet" style="display:none">DrawNurbsInterp</span><span data-if="python" style="display:none">draw_nurbs_interp</span></a></code>
</p>
<h2 id="sec_see">参考其它</h2>
<p>
<code><a href="draw_nurbs_mod.html"><span data-if="hdevelop" style="display:inline">draw_nurbs_mod</span><span data-if="c" style="display:none">draw_nurbs_mod</span><span data-if="cpp" style="display:none">DrawNurbsMod</span><span data-if="com" style="display:none">DrawNurbsMod</span><span data-if="dotnet" style="display:none">DrawNurbsMod</span><span data-if="python" style="display:none">draw_nurbs_mod</span></a></code>, 
<code><a href="draw_nurbs_interp.html"><span data-if="hdevelop" style="display:inline">draw_nurbs_interp</span><span data-if="c" style="display:none">draw_nurbs_interp</span><span data-if="cpp" style="display:none">DrawNurbsInterp</span><span data-if="com" style="display:none">DrawNurbsInterp</span><span data-if="dotnet" style="display:none">DrawNurbsInterp</span><span data-if="python" style="display:none">draw_nurbs_interp</span></a></code>, 
<code><a href="gen_contour_nurbs_xld.html"><span data-if="hdevelop" style="display:inline">gen_contour_nurbs_xld</span><span data-if="c" style="display:none">gen_contour_nurbs_xld</span><span data-if="cpp" style="display:none">GenContourNurbsXld</span><span data-if="com" style="display:none">GenContourNurbsXld</span><span data-if="dotnet" style="display:none">GenContourNurbsXld</span><span data-if="python" style="display:none">gen_contour_nurbs_xld</span></a></code>
</p>
<h2 id="sec_module">模块</h2>
<p>
Foundation</p>
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